John i



June 1929- J. F. OCONNOR RAILWAY CAR TRUCK Filed May 51, 1927 Patented June 11, 1929.

UNITED STATES PATENT OFFICE.

JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR '10 W. H. MINER, INC, OF

CHICAGO, ILLINOIS, A CORPORATION OF DELAW'AEE.

RAILWAY-CAR TRUCK.

Application filed May 31,

This invention relates to railway car trucks.

An object of this invention is to provide'a truck of the pedestal type in which equalizer bars are utilized in such manner asto permit the normal vertical movements of the journal boxes and at the same time preventexcessive tilting of the journal boxes, due to various causes, which results in injury to the guide faces of the pedestal members.

A more particular object of the invention is to provide in a truck of the character referred to, an equalizer arrangement in which the equalizer bars yieldably support the frame, and bear equally upon opposite'sides of the journal boxes and overcome the tendency of the journal boxes to assume a tilted position with reference to the guide faces of the jaws of the pedestal members.

Other and further obj ectsof the invention will more clearly and fully appear from the description and claims hereinafter following.

In the drawings forming part of this specification, Figure 1 is a side elevationalview of a portion of a six-wheeled truck showing my improvements in connection therewith. Figure 2 is a part sectional, part elevational view,

corresponding substantially to the line 22 of Figure 1. Figure 3 1s a transverse sectional View of the invention corresponding substantially to line 3-3 of Figure 1. And Figure 4 is a vertical sectional view of the construction, corresponding substantially to line 1-4 of Figure 2.

As shown, in the drawings, a frame is provided which may be of the usual rectangular form, one side member of which is indicated at 10. The load is carried on the frame by yieldable suspension means of a common type, a portion of which is indicated at 11. Rigidly secured to the frame are a plurality of pedes tal members,only two of which are shown and indicated'by the reference characters 12 and 13. Thepedestal members 12 and 13 are identical in construction and a descrip-" tion of one will suffice for a clear understanding of the other, similar reference characters being utilized for like parts of each. The pedestal 12 is made up of longitudinally extending transversely spaced walls forming jaws 1 1 and 15, and connecting portions 16-16 one of the latter fitting upon the outside of the frame member and the other on the inside of said frame member, bolts 17 extending through the outer connecting portion 16 and the frame member 10. The spaced 1927. Serial 110.1%,1'68.

Walls are connected together by horizontally disposed webs 18-18 engaging theundersurface of the member 10, and secured to the member 10 by bolts 19. The spaced walls are connected together adjacent the inner vertical edges of the jaws 14 and by means of integral webs 20, and the webs 20 at their lower ends are turned outwardly as indicated at 2121. Detachably secured to the webs 21-21 is a cross bar 22 for retaining the ournal box in position. i

The journal box indicated at 23 is slidably disposed between the jaws 14 and 15 of the pedestal member 12, and includes the usual side, top, bottom and end walls, and the usual flanges 2t24 for preventing lateral movement of the journal box with reference to the jaws of the pedestal member. As contemplated by the invention, each side wall 25 of the journal box is provided with a centrally disposed trunnion 26, which extends laterally from the wall to which it is connected to a position bet-ween the double walls of each jaw of the pedestal member. As before stated, the pedestal member 13 is identically similar to the pedestal member 12 and the journal box 27 mounted therein is also similar to the journal box 23, and -is provided on its side walls with trunnions 28 and 29.

An equalizer arrangement is provided which includes equalizer bars-3O and 31.

32 between the spaced walls of the pedestalmember 12, and isprovided with spaced jaws 3737, one of which is disposed upon each side of the journal box 23. Each of the jaws 3737, on its inner surface, is provided with a recess 38 adapted for the detachable reception of one of the trunnions 26 upon the related side wall of the journal box, the walls of the recesses providing bearing portions which transmit theweight' from the equalizer bar to the trunnions only of the journal box. The end 34 of the equalizer bar is also inclined at an angle to the intermediate portion being provided with a recess 39 adapted for the reception of the trunnion 28 on the journal box 27, the walls of the recess transmitting the load from the equalizer bar to the trunnion 28 only of the journal box. The end 84 of the bar 30 is also provided with an extension lO which overhangs the top of the journal box but normally does not rest thereupon, said extension being of somewhat less length than the distance across the top wall of the journal box from side edge to side edge. The equalizer bar 81 is similar in all respects to the equalizer bar 30, the end 41 of said bar projecting between the walls of the pedestal member in a direction opposite to the end portion 8 1 of the bar 30. The end portion 4E1 of the bar 31 is provided with a recess 12 adapted for the reception of the trunnion 29 formed upon the side wall of the journal box, the walls of the recess 12 providing a bearing surface for transmitting the load from the equalizer bar 31 to the trunnion 29 on the journal box. The end portion 41 of the bar 31 is provided with an extension 48 similar to the extension on the end 34 of the bar 30.

In operation, the load imposed upon the truck frame is transmitted through the springs 36 to the equalizer bars, and transmitted thereby to the journal boxes through the medium of the trunnions on opposite sides of the journal boxes. Relative movement of the journal boxes with reference to the truck frame is permitted by reason of the yieldable connection of the equalizer bars with the frame. The outer ends of the equal izer bars are so arranged as to transmit the load to the trunnions on the side walls of the journal box only, and the inner end of each equalizer bar is supported on one of the trun nions of the intermediate journal box. By reason of this arrangement the load is sustained in such manner that it is distributed equally to opposite sides of the journal boxes at points horizontally in line with the axes of the journals, and the journal boxes held against tilting movement in the pedestal jaws. In practice slight tilting of the journal boxes is permitted with reference to the pedestal membersby reason of the clearance usually provided between the side walls of the ournal boxes and the jaws of the pedestal members, which permits all the movement required of the equalizer bars, and it is pointed out that by reason of the disposition of the equalizer bars with their ends between the journal boxes, what little longitudinal movement of the equalizer bars occurs will have no tendency to tilt the journal-boxes, as do constructions wherein the equalizer bars are connected to the tops or bottoms of the journal boxes.

lVhile I have herein shown and described what I consider the preferred manner of carrying out the invention, the same is merely illustrative and I contemplate all changes and modifications which come within the scope of the claims appended hereto.

I claim:

1. In a truck of the character described, the combination with a frame having pedestal members secured thereto; of journal boxes mounted for vertical movement in said pedestal members; abutment shoulders on the opposite side walls of each box; and equalizer bars supporting said frame, means for preventing tilting movement of the journal boxes with reference to said pedestal members, including pressure transmitting members on said bars, engaging the abutment shoulders on opposite sides of each journal box.

2. In a railway truck of the character described, the combination with a frame and a pedestal member; of a journal box mounted for vertical movement in said pedestal member; an equalizer bar having spaced jaws fitting about said journal box, the jaws of said equalizer bar being provided with means co-operating with means on the journal box to equally impose the load from the equalizer bar to spaced points on the journal box.

3. In a railway truck of the character described, the combination with a frame and a pedestal member secured thereto; of a journal box mounted for vertical movement in said pedestal member; a plurality of equalizer bars having adjacent end portions co-operating with said journal box, said end portions being engageable with said journal box at the opposite sides thereof intermedi ate the top and bottom of said box; a second pedestal member secured to said frame; a journal box slidably mounted in said pedestal; and means upon end portions upon one equalizer bar opposite to the end portion in engagement with said first box for transmitting the load equally to the second journal box at spaced points thereon.

4. In a truck of the character described, the combination with a main truck structure; of a pedestal member carried thereby; a journal box disposed for-vertical movement in said pedestal member; and an equalizer bar yieldingly supporting said truck and trans mitting the load to said journal box, said equalizer bar having shouldered engagement at one end with bearing portions on opposite sides of the journal box below the top thereof.

5. In a truck of the character described, the combination with a frame having a plurality of spaced pedestal members secured thereto; of journal'boxes mounted for vertical movement in said pedestal members, each of said journal boxes being provided with trunnions upon its opposite side walls; equalizer bars having means co-operating with said journal boxes including jaws at one end of each of said bars between which the journal box of the related pedestal member is disposed, said jaws being provided with hearing portions for transmitting the load from the equalizer bar to the trunnions on the journal box, said equalizer bars also having adjacent end portions, each of which is provided With a bearing portion engageable with the related trunnion on the adj acent journal box to transmit the load equally to to the opposite side Walls of said journal 10 box. 7

In Witness that I claim the foregoing I have hereunto subscribed my name this 26th day of May, 1927. 1

JOHN F. OCONNOR. 

